Lotjis schtjtte



(No Model.)

L. SGHUTTE.

0350 VALVE.

. Patented Apr. 10, 1888.

lNVENTGR WITNEQSES.

Nllh drama that twice.

LOUIS SGHUTTE, OF PHILADELPHIA, PENNSYLVANIA.

CHECK=VALVE.

SPECIFICATION forming part of Letters Patent No. 380,9d0, dated April 10, 1888.

Application filed May 20, 1887. Serial No. 238,866. (No model.)

To all whom, it may concern:

Be it known that I, LOUIS SOHUTTE, of Philadelphia. in the county of Philadelphia and State of Pennsylvania, have invented certain Improvements in Check-Valves, of which the following is a specification.

The object of this invention is to improve the action of swinging check-valves, to prevent their action from being impaired by wear of the parts, and to adapt the valve to seat itself tightly when placed in different positions.

In the accompanying drawings, Figure 1 represents a transverse vertical section through my valve arranged to close a vertical passage. Fig. 2 shows a sectional view of the valve arranged to close a horizontal passage, this second valve differing in minor details from the first, and being provided with a stop-spindle, by which it may be positively closed. Fig. 3 is a sectional view showing the valve in its open position.

In constructing my valve I place the pivotpins in line, or nearly so, with the valve-seat and on the under or admission side of the seat, and so form the arm or hinge which carries the valve proper that while passing through the throat ou the under side it permits the valve to open and close freely. In order to admit of the valve adjusting itself freely to its seat, I preferably joi nt it to the arm or hinge by which it is carried. This jointed attachment of the valve also admits of the valve proper being readily detached when it is to be reground or Referring to Fig. 1, A A represent the body inlet-throat a and the outlet throat b. As shown, the body consists of two corresponding or complementary halves joined on the plane oblique to the axis and confining between them the outer edge of the valveseat B, having the usual throat oropening through its middle. The two parts of the body are united by screws or otherwise and drawn tightly together upon the edge of the seat or diaphragm to produce a tight joint. This construction admits of the seat being readily removed, and also of its being revolved in the plane of its edge and of its being turned side for side, so that whatever the position of the body the valve will close by gravity.

(3 represents the valve proper, which may be made of any suitable form adapted to close upon the upper side of the seat B, and connected centrally on its under side by a pivot,c, to one end of a curved arm or hinge, D, which is in turn connected by a pivot, d, to cars on the under side of the valve'seat B.

The arm D is curved at its lower end, as plainly shown, in such manner that its upper end, which carries and guides the valve, may swing upward through the throat in order to permit the opening of the valve, as shown in Fig.

While I prefer to pivot the arm D to the ears on the valve-seat, as shown, for the reason that it permits the seat and valve to be removed as one from the body, it is to be understood that the arm may be jointed to the body, if preferred.

The free end of the arm I) is extended beyond its pivot c and lies at a short distance from the under face of the valve, which is thus left free to tip or rock sufficiently to adjust itself tightly to the seat, while at the same time the arm serves to prevent it from turning over or assuming a position which would prevent its proper action.

The valve shown in Fig. 1 consists of a bottom plate or disk, 6, of suitable diameter to pass through the throat, an overlying sheet of leather or rubber, f, which closes on top of the seat, and an upper confining-plate, g, which is secured upon the threaded stem h of the lower plate, 0.

Referring now to Fig.2, it will be perceived that the valvebody, the valve-seat, and the valve-sustaining arm are constructed and arranged as in the previous case. The valve proper is formed, however, in one solid piece of metal jointed to the arm and arranged to close upon the seat in the same manner as in the first form of the device.

It will be observed that in each form of my valve the pivot 02 of the supporting-arm is arranged in the same or substantially the same plane as the seat or throat of the valve. This arrangement, which is secured by the use of the dished or concave seat in connection with the curved valve-carrying arm, is advantageous, in that it prevents the wear of the bearing-surfaces from throwing the valve out of its proper relation to the seat to the extent which would otherwise occur.

lVhile it is preferred to pivot the valve to the free end of the arm, it is to be understood that my invention includes valves which are rigidly attached to a supportingarm pivoted below the valve-seat.

For the purpose of positively closing the valve and h olding the same shut when required, I provide a threaded spindle, E, extending through a boss on the side of the ease and provided with ahand-wheel, G, on the outer end, the inner end of this spindle being arranged in position to act directly on top of the valve and force the same to its seat. The spindle may be provided with a suitable gland or stuffing-box to prevent leakage.

Having thus described my invention, What I claim is In a cheek-valve, the dished or concave plate containing the throat or seat proper, in com this 16th day of May, 1887, in the presence of 25 two attesting Witnesses.

LOUIS SOHUTTE. Witnesses:

DANIEL HILDRETH, FRANK SPILLIN. 

